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Earthworks IMBL30 LumiComm Touch Ring Boundary Microphone

The IMBL30 is the same True Semisphere boundary microphone as the IMB30, with a LumiComm dual-color (red and green) LED touch ring added around the flange. Touching the ring sends a momentary digital pulse to an external control or logic system, so it can be wired to mute indication, call-to-talk, or any other programmed function.

The touch ring runs from its own external 8 to 28 VDC power source (85 to 170 mA) over a Phoenix or RJ45 connector, separate from the microphone's 48 V phantom feed. Mounts flush through the same 1 1/16 in hole as the IMB30. Available in black, white, or stainless steel finish - select above.

Microphone TypeBack-electret condenser
Polar PatternTrue Semisphere (omni boundary)
Frequency Response60 Hz - 30 kHz, +/- 2 dB at 45 degrees incidence
Sensitivity70 mV/Pa at 1 kHz
Maximum Acoustic Input136 dB SPL (3% THD)
Power Requirements48 V phantom, 10 mA
Light RingDual red/green LED, Phoenix or RJ45 connector, 8 - 28 VDC at 85 - 170 mA
Light Ring ActivationMomentary digital pulse (contact closure)
OutputXLR-3 (pin 2+)
Weight0.28 lb (125 g)

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